Sintering-machine.



J. F. AUSTIN.

SiNTERING MACHINE.

APPLICATION FILED JUNE 18, 1913- RENEWED SEPT. l7. l9 Pat- 1 5 ented Apr. 18, 1916.

3 SHEETS--SHEET l- WITNESSES: mvmron ATTDRNEYS- J. F. AUSTIN.

SINTERING MACHINE. APPLICATION FILED JUNE 18. 1 913. RENEWED SEPT. '11. 1915.

1 179,390. Patented Apr. 18, 1916 3 SHEETS-SHEET 2.

INVENTOB WIT EssEs: v z

- ATTORNEYS.

J. F. AUSTIN.

SINTERING MACHINE.

APPLICATION FILED JUNE 18, 1913. RENEWED SEPT. 17. 1915- Patented Apr. 18, 1916.

3 SHEETS-SHEET 3.

INVENTOH /%n 5? M.

' ATTORNEYS.

fi novel ignition device, elevation in Fig, 1

UNITED s'rA'rns OF MONTEREY, MEXICO, ASSIGNOR TO THE AMERICAN SMELTING &

JOHN F. AUSTIN,

nnrmmc COMPANY. or new roan, n.

PATENT OFFICE.

Y., A CORPORATION or NEW JERSEY.

-' SINIERING-MACHINE Application filed June 18, 1913, Serial No. 774,311.

thereof.

My invention relates to a .sintering machine, and more particularly relates to the means for igniting the ore charge or other material. as it passes through said machine.

The main objects-of the invention are to provide a compactly constructed and economically operated ignition device adapted to use crude oil or similar product as a fuel and which will ignite the charge irrespective of its wet condition or of the rapidity with which it is fed through the machine.

The various other objects of the invention will .be more fully set forth in the following description of an apparatus embodying my invention which discloses new and novel features of construction and combination of parts hereinafter set forth and claimed.

Reference is to be had to the accompanying drawings in which similar reference characters refer to correspondingparts and in which- I 1 Figure 1 is a side elevation of a portion of the charging end of a sintering machine disclosing a preferred embodiment of my invention. Fig. 2 is a vertical transverse sectionai view taken through the machine in advance of the wind box and the upper porion thereof shown to be a section taken on an irregular lane indicatedby the line 2-2 of Fig. 1 100 ing in the direction indicated by the arrows. Fig. 3 is a side elevation of shown in the end tion in Fig. 2.. Fig. 4 is a transverse sectional view through one end of the ignition device and taken on a plane indicated by the line 4-4 of Fig. 3. Fig. 5 is a similar view taken centrally through the ignltion device and on a plane indicated by the line 5--5 of Fig. 3. Fig. 6. is through the ignition device and through one of its pairsof resilient supports and taken in a plane indicated by the line 6- -6 of Fig.

3 with a portion of the supports omitted and Specification of Letters Patent.

' connected to one which extends transversely across and above and in longitudinal sec- 'of a spacing sleeve a similar view taken Patented Apr. 18, 1916.

Renewed September 17, 1915. SerialNo. 51,284.

Fig. 7 is a view similar to Fig. 4 but showmg a slightly modified form of end block having a built up arch.

The machine comprises a suitable frame A carrying a feeder hopper B from which the moistened ore, by-p'roducts'or concenpallets C forming an endless chain of pallets passing about and actuated by end sprocket wheels, the sprocket wheel at the charging end of the device being shown in outline at D in Fig. 1. The pallets C, each have a grate E of suitable form and construction carrying the material F in a layer ofsubstantially uniform thickness. Disposed above the upper row of pallets is an ignition device G, which ignites the sulfates and other readilycombustible materials on the. surface of the moist ore and the combustion n is maintained by bustible carried by the ore. is accelerated by passing over a wind box-H,

the sulfur or other com- The combustion the ignited ores which creates a 'downw ward draft through the pallets and mate rials carried thereby, the wind box being of such alength in the direction of travel of the pallets that the combustible matter is consumed in its passage over the wind'box, so that at the discharging end of' themachine, the cake is ready forthe blast furnace or for otherfurther operation thereon.

The ignitingdevice is suspended from the frame A by resilient supports comprising a I plurality of suitably spaced rods 1 secured to brackets 2 forming a part of the frame A. The lower end of each rod is provided with a head 3 which extends into a cylinder 4 attached to a link of thecylinder pression spring end of a horizontal rod .7

the top of ing supported by a vice, G. This holding plurality of bent metallic straps 10 spaced apart and held in position by transverse longitudinal tie oneach side and rods or bands 11 arranged at the top of the frame.

frame 9 of theignition de-- frame comprises a 5. Between the upper head 4 and the head 3 is a com- 6. Each link 5 is pivotally 60 trates are automatically fed into -moving I closed by the end blocks,

The links 5 are pivotally secured to the side rods or bands by means of the vertical connecting rods 12. The metallic skeleton frame is lined by a suitable fireproof or refractory material, such as the blocks 13. Preferably each block is held by one of the bands or straps 10, which may encircle the as shown in Figs. 4 and 7, or may merely engage the bottom edges of the blocks, as indicated in Fig. 5. The central part of the ignition device is cut away to provide a recess to receive the pallets and the upper portion of the material thereon and said recess portion has an opening of the same width as the pallets which is normally pallets and material thereon so that the heated products have no outlet exceptthrough the material F and the grates E.. The end portions of the ignition device, which are preferably closed extend beyond the sides of the pallets and constitute mixing or volatilizing chambers for the liquid fuel and. air is fed to the burner J preferably under pressure through suitable pipes 14 and 15. These pipes are preferably conducted to the burner immediately above the ignited material on the to preheat both the oil and air. The ends of the ignition device are closed in any suitable manner, either by refractory wall 16 or by a metallic plate 17. If desired, each section of the refractory lining may be made of a plurality of blocks as shown in Fig. 7 instead of a solid block as shown in Figs. 4

and 5.

In operation, the material is carried by the pallets beneath the opening in the ignition device, and is thus ignited by the fiame which is directed upon the upper surface of the material. As the pallets are moved past the ignition device, the ore continues to burn until the cake which is formed by the combustion, is emptied by causing the pallets to pass over the roller or guides (not shown) that invert the same fall by gravity therefrom in any well known manner.

My improved construction permits crude oil and similar substances to be used as fuel the ore instead of'gasolene and for igniting Th e operasimilar volatile hydrocarbons.

tion of the device is practically independent of the amount of moisture in the ore, which may be treated when it is quite wet. The ore may be ignited very quickly since it is subjected not only to the direct heat of the burning fuel, but also to the heat radiated from the refractory lining, and consequently the pallets can be moved at a relatively high rate of speed. The ignition device is supported in such a manner that it is free from the jarring of the moving pallets thus maintaining a steady and uniform flame. In case any of the blocks forming the lining should become broken, the construction of the skelepallets in order and permit the cake to ton frame permits such block to be readily removed and replaced.

Although I have shown one form of construction embodying my invention, it is obvious that various changes and modifications within the skill of the mechanic may be made therein without departing from the invention provided the means set forth in the following claims be employed.

Having thus described my invention, I claim 1. In a sintering machine, the combination with a movable carrier for the material to be treated, of an ignition device arranged above said carrier, said ignition device comprising a combustion chamber having an opening therein to receive the upper porion of the material on said carrier, and means for supplying a combustible fuel to said chamber.

2. In a sintering machine, the combination with a movable carrier for the material to be treated, of an ignition device arranged above the carrier, said ignition device comprising a combustion chamber having a single opening adapted to receive the upper portion of said carrier and the material thereon and closed by said carrier, a burner in said chamber and means for supplying a combustible fuel to said burner and means for creating a draft through said material.

3. In a sintering machine, the combination with a movable carrier for the material to be treated, ofan ignition devicearranged adjacent the material on said carrier comprising a combustion chamber having an opening adjacent the material, and resilient means for supporting said ignition device in relation to the carrier.

In a sintering machine, the combination with a movable carrier for the material to be treated, of an ignition device arranged transversely to the line of travel of said carsaid chamber a portion of said device being recessed to receive the carrier and having an opening extending lengthwise of said recessed portion to permit the material to be ignited from said burner.

5. In a sintering machine, the combination'with a movable carrier for the material to be treated, of an ignition device arranged adjacent said carrier and comprising a plu-' rality of bent straps spaced apart and Se cured 1n position by longitudinal tie rods, and a lining of refractory material, said lining comprising sections secured to said straps, each section being supported bv a strap independent of the other section's.

In a sintering machine,-an ignition device closed except for an opening on one side, said opening having a width less than the length of said device thereby to provide a heating space in one end of the device, the products of combustion through the mameans for positioning material to be ignited terial. 10 across said opening to close the same, a This specification signed and witnessed burner in said heating space positioned to this 10th day of May, A. D., 1913.

one side of the space above the opening, the JOHN F. AUSTIN. top of said device adapted to reflect the Signed in the presence of flame from said burner onto said material F. T. ANDERSON,

and means for drawing substantially all of FRED HEES. 

